[JIRA] [clearcase-ucm] (JENKINS-18281) Possibility to remove the contributing activities from the change set of the build, case 9488

Fri, 21 Jun 2013 06:25:02 -0700

Unfortunately, I found out that the option "-nmerge" is not correct either:

Imagine you have a stream called "foundation" and another called "child". In foundation we have FOUND_BL1 and FOUND_BL2. We rebase then "child" from FOUND_BL1 to FOUND_BL2. In that case:

  • An element that has been changed between BL1 and BL2, but not on the child stream, will not show up in the output of "cleartool diffbl -nmerge".
  • An element that has been changed between BL1 and BL2, and has also been changed in the child stream, will show up in the output of "cleartool diffbl -nmerge", because the change from BL2 will have to be merged into the child stream.

So without the option "-nmerge", we get too many changed elements, and with the option "-nmerge" we don't get all the changes. That's why I propose to NOT use the option "-nmerge" in the plugin.

As an alternative, I am planning to implement the following logic in my own build script (which is called in our Jenkins Job when the UCM plugin fires a job):

  • the script will calculate all labels attached to the version that is currently selected by the view (via a cleartool describe command).
  • If there is more than label attached to that version (and these label are older than the label associated with the current baseline), then we can assume that it has already been seen (and built) by Jenkins.

This is probably more work and for me it's not necessary to have this in the Changes list of Jenkins. I'll just use it myself in my build script (which is in Perl). If you want to have the code afterwards to port it to Java, I can provide it to you.
If you prefer not to implement this, you can close this issue or lower its priority.
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